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From "Shaofeng SHI (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (KYLIN-3646) Add instruction about rowkey sequence in "Advanced setting" page
Date Tue, 30 Oct 2018 01:24:00 GMT

     [ https://issues.apache.org/jira/browse/KYLIN-3646?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Shaofeng SHI updated KYLIN-3646:
--------------------------------
    Fix Version/s:     (was: v2.6.0)
                   v2.5.1
                   v2.4.2

> Add instruction about rowkey sequence in "Advanced setting" page
> ----------------------------------------------------------------
>
>                 Key: KYLIN-3646
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3646
>             Project: Kylin
>          Issue Type: Improvement
>          Components: Web 
>            Reporter: Shaofeng SHI
>            Assignee: Roger
>            Priority: Major
>             Fix For: v2.4.2, v2.5.1
>
>
> The position of dimension in rowkey is important for performance (both build and query);
But this message is not clear for a normal user. We'd better add instruction on the web GUI,
so that user knows to adjust it by some rule.
>  
> In the rowkey part, adding:
> "Important: Dimension's positioin on HBase rowkey is critical for performance. You can
drag and drop to adjust the sequence. In short, put filtering dimension before non-filtering
dimension, and  put high cardinality dimension before low cardinality dimension."



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